PUT test_group_id
{
    "settings": {
        "index": {
            "knn": true,
            "knn.algo_param.ef_search": 100,
            "number_of_shards" : 6, 
            "number_of_replicas" : 1 
        }
    },
    "mappings": {
        "properties": {
            "embedding": {
                "type": "knn_vector",
                "dimension": 64,
                "method": {
                    "name": "hnsw",
                    "space_type": "innerproduct",
                    "engine": "faiss",
                    "parameters": {
                    "ef_construction": 256,
                    "m": 48
                    }
                }
            },
            "url"         : {"type" : "keyword","doc_values" : false},
            "uuid"        : {"type" : "keyword","doc_values" : false},
            "pkey"        : {"type" : "keyword","doc_values" : false},
            "iid"         : {"type" : "keyword","doc_values" : false},
            "dataid"      : {"type" : "keyword","doc_values" : false},
            "ctime"       : {"type" : "date"},
            "gtime"       : {"type" : "date"},
            "classes"     : {"type" : "keyword","doc_values" : false},
            "outlook"     : {"type" : "keyword","doc_values" : false},
            "origin"      : {"type" : "keyword","doc_values" : false},   ## 跟哪个相似了 dataid
            "reason"      : {"type" : "keyword","doc_values" : false},   ## 相似原因
            "keywords"    : {"type" : "text", "analyzer" : "whitespace"},
            "title"       : {"type" : "text"},
            "title_split" : {"type" : "text", "analyzer" : "whitespace"},
            "title_entity": {"type" : "text", "analyzer" : "whitespace"},
            "group_id"    : {"type" : "keyword","doc_values" : false}
        }
    }
}
